Read more about biological control with insects and arachnids at CBC's research page Biodiversity and conservation biological control with insects and arachnids.Ī crab spider catches a hoverfly. Instead, we can apply conservation biological control and promote enemies to the plant pests that naturally occur in the environment. In open cultivation systems covering large areas, it is more difficult to use augmentative biological control. In greenhouses you can create good conditions for the natural enemies, and biological control is often an effective measure if it is set up early. In greenhouse cultivation, cultivated insect predators and parasitoids or predatory mites have been added for a long time in order to inhibit pests. Another well-known example is the bacterium Bacillus thuringiensis, which is used worldwide for larvae of insect pests.įield work in an area by the river Dalälven where Bacillus thuringiensis has been used against mosquito larvae. The biological control products Cedomon® and Cerall® have, since their introduction in the late 1990s, replaced about 1.5 million liters of synthetic fungicides in the cultivation of cereals. Read more about treatment of root rot on spruce at the Department of Forest Mycology and Plant Pathology.īacteria are used with great success as biological pesticides and can have many positive effects on the plants. Phlebiopsis gigantea is a fungus that grows on dead wood and old timber rolls. Rotstop contains live spores of a fungus found naturally in our forest - Phlebiopsis gigantea. The biological pesticide is called Rotstop and prevents Heterobasidion from spreading and cause root rot in spruce and pine populations. In forestry, biological control is for example used to reduce attacks by Heterobasision annosum, a pest that causes losses in forestry of EUR 50-100 million annually. In a research project, Hanna Friberg from the Department of Forest Mycology and Plant Pathology, examines how biological control can be used to overcome corky root rot in organic tomato cultivation. greenhouse spider mites, mildew, aphids, thrips, mealybugs and larvae of dark-winged fungus gnats, weevils and butterflies. Today, biological methods are used in greenhouses for the control of eg. In this way, it is easier for the beneficial organism to control the pest. It is important to quickly apply the beneficial organisms when a pest emerges. Horticultureīiological control works well in greenhouses as it is quite easy to control the environment to create good conditions for different organisms. cereal seeds, oilseeds, potatoes, corn, peanuts and cotton. There are a variety of organisms and products that can be used in the cultivation of many different crops e.g. Biological control can be used to combat insects and fungal diseases as well as damages from nematodes. Plant pests can be limited by means of natural enemies such as fungi, bacteria or arachnids. Classical biological control: Addition of new biocontrol agents for proliferation and long-term establishment.īiological control is a broad concept and can be used for the control of pests in very many different contexts.Augmentative biological control: Addition of propagated biocontrol agents, temporarily increasing their population densities in a targeted area.Conservation biological control: Directed stimulation of resident natural enemies to enhance their control of pests and pathogens.Natural biological control: The service carried out by resident natural enemies of pests and pathogens without human involvement.There are four basic types of biological control: Biological control is an important component of integrated pest management, (Integrated Pest Management). Today, biological control is used primarily for controlling pests in crop cultivation.Īdvantages of biological control are that no artificial substances are added, and that pathogens / animals that develop resistance against biological control agents are rare. The method takes advantage of basic ecological interactions between organisms, such as predation, parasitism, pathogenicity and competition.
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